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Questions in engineering

[Free] What is the normal time delay in an oil safety control before it trips? A. 10 seconds B. 30 seconds C. 120 seconds D. 60 seconds

[Free] What are common hazards in confined spaces? Select all that apply. Chemical Biological Moving equipment Engulfment Electrocution

[Free] A toggle bolt is a good choice for A. bolting a chiller to the floor. B. mounting a safety warning sign. C. securing a blower wheel on a shaft. D. installing a compressor cylinder head.

[Free] Passive solar homes are a. energy-efficient b. minimally insulated c. high-embodied energy d. specific-design structures designed to make internal spaces comfortable.

[Free] What type of micrometer requires the technician to read it in the opposite direction and go by the values that are still covered on the sleeve? Options: - Inside - Outside - Depth - Metric

[Free] What term describes liquid refrigerant returning to the compressor? A. Migration B. Overloading C. Floodback D. Washing

[Free] You have fenders on the bow. What's next? + The wind/current direction is toward the dock. Put the boat into forward gear briefly, and turn the steering wheel hard toward the dock. + Put your boat into reverse, and back up slowly. Put your boat into forward gear, and drive forward until the bow line is tight

[Free] What does a mechanical governor do? A. Recognizes and reacts to change in load demand B. Supplies unlimited high-pressure fuel to the injectors C. Increases fuel injection duration on cold mornings D. Advances fuel injection timing as engine speed increases

[Free] One advantage of a flooded evaporator is a) its ability to lower the temperature across the entire evaporator's surface. b) its ability to vary temperature across different areas of the evaporator's surface. c) its ability to circulate more pounds of refrigerant per square foot of heat transfer surface. d) its ability to raise the temperature across the entire evaporator's surface.

[Free] A row of 25-foot-tall trees can produce turbulence unsuitable for wind turbines a. up to 100 b. more than 500 c. up to 350 d. more than 1,000 feet away The most commonly used semiconductor is a. boron b. phosphorous c. crystalline d. silicon